Reinforced concrete structure.



No. 865,231 PATENTED SEPT. 3, 1907;

B. UPTON. REINFORCED CONCRETE STRUCTURE.

E. R. BOYLE dz W AIEPLI ATIOH FILED .1 6.

0 OOT 9 90 2 SHEETS-SHEET 1.

No. 865,231. PATENTED SEPTLB. 1907.

E. R. BOYLE & W. B. UPTON. REINFORCED CONCRETE STRUCTURE.

APPLICATION FILED 6. OOT 9 190 2 SHEET8-SHEET 2.

ELDRIDGE R. BOYLE AND WILLIAM B AYLY UPTON, OF WASHINGTON, DISTRICT OF COLUMBIA.

REINFORCED CONCRETE STRUCTURE.

Specification of Letters Patent.

Patented Sept. '3. 1907.

Application filed October 9, 1906. Serial No. 338,141.

vented a new'and useful Reinforced Concrete Struc- -ture,'of which the following is a specification.

This invention relates" to means for reinforcing concret'e'structures, and the primaryobject is to provide a novel and exceedingly simple construction, the parts or which can-be readily manufactured and assembled, will constitute an effective reinforcement for the concrete, and will permit the-latter to be properly packed in and around it.

Several embodiments of the invention are illustrated in the accompanying drawings, wherein l Figure his a sectional view through a concrete floor structure, showing the improved reinforcing 'means therein. Fig. 2 is a sectional view at right angles'ot Fig. 1. Fig. 3 is a detail sectional view on an enlarged scale, through the reinforcing structure. Fig. 4 is a sectional view at right angles to Fig. 3. Fig. 5 s a detail perspective view of one of the reinforcing yokes.

Fig. 6 is a detail perspective view of aportion of one of the reinforcing bars. Fig. 7 is a detail sectional view of a slightly modified form of construction. Fig.8 is a perspective view of the form of reinforcing bar illustrated in Fig. 7. Fig. 9 is a'detail view of another modification. Fig. 10is a perspective view of a portion of thc reiniorcing bar shown in Fig.9. Fig. 11 is still another modification of the invention. Fig. 12 is a perspective view of a portion ofthe reinforcing bar illustrated in Fig. 11. Fig. 13 is a sectional view through a floor structure, showing a modified reiniorcing structure therefor. Fig. 14 is a plan view of the same, with the concrete that covers the reinforcing structure. removed.

' Similar reference numerals designate corresponding Referring first to the embodiment illustrated in Figs. 1 to,6 inclusive, a portion of a concrete floor structure is llustrated, showing a beam 15 and a floor body 16E- The beam is reinforced by a series of longitudinally dis.- p'osed bars 18, which may be of any desired cross sectional area, preferably substantially elliptical, as illustrated. These bars are provided on their upper sides with single longitudinally disposed fins 17, having openings 18 therethrough, which openings are angular. I

The fins, as shown, are of substantially the samethickness throughout their width and their upper edges constihits the upper edges of the bars. In other words, there are no flanges along the upper edges of the fins that will prevent the proper packing of the concrete therearound Moreover while it is desirable that the fins be of exactly the same thickness throughout in order that theopenings-lSmay be accurately produced, it will be understood that the statement substantially the same thickness comprehends the slight variations due tothe methods of manufacture. For instance in rolling the bars, said fins usually have a slight taper. Reinforcing yokes in the form of rods or bars are passed through the openings, and fit snugly therein, having a cross sectional shape corresponding to the shapes of the openings, and being disposed at an inclination to the bars, as clearly shown in Fig. 2. The yokes comprise a series of reversely curved loops, and serve to connect all of said bars. The upper ends of the yokes extend well into the -fioor body 16, and said yokes, as shown, are entirely above the bars. The'.floor body 16 is likewise reinforced by similar bars 19, each having a narrow single upstanding fin 20 providedwith angularly disposed openings. Substantially U-shaped yokes 2], located at an inclination to the bars, havetheir intermediate portions snugly fitted in the openings. The side arms 22 of said yokes terminate short of the upper surface of the floor. "here are many advantages for this particular structure. In the first place, it will be observed that it can be very cheaply manufactured, and the parts easily v assembled. Furthermore by employing the upstanding fins, which are comparati vely thin, the concrete can be packed closelyupon and around the bars, and the yoke-receiving openings being in the fins, the bars are not weakened. This arrangement furthermore permits the bars being placed very close to the lower surface of the concrete structure, for the reason that the yokes do not pass around the same, and it is a well known fact that the lower said bars can be placed, the greater will be their efficiency.

In 7 and 8, a slight modification is shown. In this case, the bar 23 is substantially diamond shaped. and the fin 24 projects fromits upper corner. The

firrcoinplises a series of separated sections, thoughra continuous fin may-be employed if desired. The said fins are provided with angular openings 24 that snugly receive the intermediate portions oi'intermediate yokes 26, being formed of rods that are angular in cross section and being disposed at an inclination to the bar.

InFigs. 9and 10, another modified form of construction is illustrated.- In this embodiment, the bar 27 is square, and has an upstanding fin 28 provided with inclined slots 29, the yokes, one of which is shown at 30am constructed of rods or strips thatwill fit snugly in the I rest upon the bar on opposite sides of the fin, thus serving to support the main portions of said side arms at an inclination to the bar. t

It will be noted by reference to Figs. 6, 8 and 12 that the greatest width-oi the bars 16, 23 and 32 is above their bottom edges or faces. .This permits the concrete to be effectively packed'beneath the bars and around their lower portions, and is an'important feature in the strob ture. In the claim covering thisparticular and very important ieature, I do not wish to be understood as covering the ordinary T-shapedbeams which would have their greatest widths at thelowermost edges, and

' which cannot therefore have the concrete packed about is reinforced by bars 38, having fins 39 provided with them as advantageously as-with the above described bars.

Still another embodiment of the invention is illustrated in Figs. 13 and l4.- The concrete structure 37 angular openings 40. The reinforcing yokes 41, in this form of construction, bridge the spaces between. the bars, and their side arms 42 have terminals .43 that snugly engage in the openings and serve to support the yokes at an inclination to the bars, as clearly shown in Fig. 14. Theseyokes are disposed in staggered relation.

From the foregoing, it is thought that, the construc- 1 nation with a reinforcing bar having a single fin along one side only, said fin being of substantially the same thickness throughout its width, the free edge of the fin constituting the corresponding edge of the bar, said do being provided with openings therethrough, of reinforcing arms passing through the openings and being of a size in cross section substantially equal to the area of the openings, .said arms thus fitting snugly in and substantially filling the openings and being disposed at an inclination to said bar.

2. In a structure of the character described, the combination with a reinforcing bar having a thin narrow finon its upper side, said fin being of substantially the same thickness throughout its width, and having its upper thin edge forming the corresponding edge of the bar, said fin being provided with openings therethrough, of reinforcing arms passing through the openings and being of a size in cross section substantially equal to the area thereof, said arms thus fitting snugly in and substantially filling the openings and being disposed at an inclination to and wholly above the bar.

3, In a structure of the character described, the combination with a reinforcing bur having a thin outstanding fin along one side, said fin being provided with angular openings therethrough, of reinforcing arms snugly passing through the openings andhaving the portions in said openings, also angular in crosssection, to prevent theswinging of the arms.

4. In a structure of the character described the combination with spaced reinforcing bars,- each havinga longitudinal fin along its upper side, said fin being provided with openings, of yokes connecting the fins and disposed wholly above the bars, said yokes having arms that are disposed at an inclination to the bars and snugly engage in the openings of the fins. I

5. In a structure of the character described, the combination with spaced reinforcing'bars, each having a longi upon its upper side, snid fin being provided with an.

angular opening therethrough, of a reinforcing yoke snugly passing through the opening and having the portion therein angular in' cross section, said yoke bein'g'dlsposed wlioilythe bar, of a reinforcing arm passing through the fin and extending at an inclination above the bar and above said iin, said'arm being located wholly above the widest portion of the bar.

In testimony, that we claim the foregoing as our own, we have hereto aifixed our signatures in' the presence of two witnesse ELDRiDGE R. BOYLE. WILLIAM BAYLY UPTON.

Witnesses:

JOHN H. Srsonns, B. G. Fos'rnn. 

